Broad Airpro Mask Efficiency Test 99.99%

Test particulate matter before and after Airpro mask

The result without Airpro mask: 

PM0.3~2.5: 15221;

PM 10: 21;

The result with Airpro mask:

PM0.3~2.5: 46

PM 10: 0;

For PM0.3~2.5, Only 0.0003% pass the filter.

The Airpro mask filter efficiency 99.997%.